package com.atguigu.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.client.ClientHttpRequestFactory;
import org.springframework.http.client.SimpleClientHttpRequestFactory;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.ResourceRegionHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.messaging.converter.GenericMessageConverter;
import org.springframework.messaging.converter.MessageConverter;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;
import java.util.Enumeration;

@Configuration
public class GuilimallOrderFeignConfig {



    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        RequestInterceptor interceptor = new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate requestTemplate) {
                //1、使用RequestContextHolder拿到刚进来的请求数据
                ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

                if (requestAttributes != null) {

                        //老请求
                        HttpServletRequest request = requestAttributes.getRequest();
                        if (request != null) {

                            //2、同步请求头的数据（主要是cookie）
                            //把老请求的cookie值放到新请求上来，进行一个同步
                            Enumeration<String> cookie = request.getHeaders("Cookie");
                            requestTemplate.header("Cookie", cookie.nextElement());
                            //requestTemplate.setSupportedMediaTypes()

                      //  }
                    }
                }

            }
        };
        return interceptor;
    }

}
